John Reynolds. (2013). Cambridge Checkpoint English Workbook 1 ("New, Workbook".). Hodder Education.
Cita Chicago Style (17a ed.)John Reynolds. Cambridge Checkpoint English Workbook 1. "New, Workbook". Hodder Education, 2013.
Cita MLA (9a ed.)John Reynolds. Cambridge Checkpoint English Workbook 1. "New, Workbook". Hodder Education, 2013.
Precaución: Estas citas no son 100% exactas.